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TABLE 1 GROUNDWATER MONITORING AND CHEMICAL RESULTS: <br /> FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA <br /> WELL # CASING DATE DEPTH TO PROD. VACUUM CORREC'T'ED TOTAL PET. BENZENE TOLUENE ETHYL XYLENES Methyl Cert-Butyl DISSOLVED <br /> ELEVATION TOP OF THICK. AT WELL GW ELEV. HYDROCARB BENZENE Ether OXYGEN <br /> FEET AMSL WATER HEAD FT. AMSL GAS-RANGE 8020 8260 <br /> IN FEET IN FEET IN FEET PPM PPB PPB PPB PPB PPB PPB PPM <br /> MW12 12.38 12/09/88 <br /> 12.38 10/01/92 56.88 0 0.00 -44.50 <br /> 12.38 10/08/92 56.92 0 0.00 -44.54 0.11 5.3 1.9 <0,3 2.1 <br /> 12.38 11/11/92 56.56 0 0.00 -44.18 <br /> 12.38 12/09/92 56.14 0 0.00 1 -43.76 0.91 180 3.8 1.8 16 <br /> 12.38 01/15/93 55.52 0 0.00 -43.14 <br /> 12.38 02/08/93 54.58 0 0.00 -42.20 <br /> 12.38 03/11/93 54.42 0 0.00 -42.04 0.53 <0.3 0.7 1.4 1.2 <br /> 12.38 04/15/93 53.6 0 0.00 -41.22 <br /> 12.38 05/18/93 51.61 0 0.00 -39.23 <br /> 12.38 06/14/93 52.8 0 0.00 -40,42 0.62 180 1.2 33 <0.9 <br /> 12.38 07/19/93 51.66 0 0.00 -39.28 <br /> 12.38 08/20/93 53.12 0 Tr -40.74 <br /> 12.38 08/23/93 53.12 0 Tr -40.74 <br /> 12.38 09/16/93 53.33 1 0 0.00 -40.95 <br /> 12.38 09/29/93 53.32 0 0.00 -40.94 <br /> 12.38 09/29/93 53.32 0 Tr -40.94 0.54 180 5.4 61 12 <br /> CIO 12.38 11/05/93 52.9 1 0 0.00 -40.52 <br /> 12.38 12/22/93 52.26 0 0.00 -39.88 4.8 1700 20 350 20 <br /> 12.38 02/10/94 52.25 0 Tr -39.87 <br /> 12.38 03/04/94 50.92 0 Tr -38.54 <br /> 12.38 03/29/94 50.15 0 0.00 -37.77 1.5 820 1 2 150 5 <br /> 12.38 04/26/94 49.79 0 0.00 -37.41 <br /> 12.38 05/19/94 50 0 0.00 -37.62 <br /> 12.38 06/22/94 49.14 0 0.00 -36.76 1.4 510 <3 47 <10 <br /> 12.38 08/17/94 51.35 0 0.00 -38.97 <br /> 12.38 09/14/94 50.21 0 0.00 -37.83 0.4 14 <0.5 <0.5 <2 <br /> 12.38 10/26/94 50.4 0 0.00 -38.02 <br /> 12.38 12/16/94 50.03 0 0.00 -37,65 0.5 130 8 3 4 <br /> 12.38 01/25/95 49.42 0 0.00 -37.04 <br /> 12.38 03/15/95 48.46 0 0.00 -36.08 0.09 0.7 <0.5 <0.5 <2 <br /> 12.38 04/12/95 48.56 0 0.00 -36.18 <br /> 12.38 05/17/95 47.29 0 0.00 -34.91 <br /> 12.38 06/21/95 46.98 0 0.00 -34.60 2 150 62 120 300 <br /> 12.38 08/01/95 47.17 0 0.00 -34.79 <br /> 12.38 09/26/95 47,32 0 0.00 -34.94 2.1 98 6.8 120 180 <br /> 12.38 10/17/95 46.62 0 0.00 -34.24 <br /> 12.38 11/14/96 46.8 0 0.00 -34.42 <br /> 12.38 1 12/12/95 47.33 0 0.00 -34.95 6.3 210 200 410 1400 <br />